I have spent quite a bit of time revising articles on machines in Wikipedia. I hope my contributions are an improvement.

When I started there was a lot of controversy over the definition of Machine, which forced me to introduce Machine (mechanical) and Mechanical system. This has changed and there is movement to move the definitions under a revised version of Machine.

Anyone may edit Wikipedia, and it is intended to allow user communities to maintain the quality of particular sets articles. It is important that we take this opportunity because Wikipedia is an important resource to our students.

I am pleased to say that the second edition of my book, Geometric Design of Linkages, is now available, and I have to express my sincere gratitude to my co-author GimSong Soh, who helped make it happen.

This is a draft of my editorial on 21st Century Kinematics for the Journal of Mechanisms and Robotics. It is a follow-up to my previous editorial on Kinematics, Polynomials and Computers. I would welcome your feedback.

Select this link to the .pdf of Kinematics, Polynomials, and Computers–A Brief History, which is a summary of the history of the kinematics of mechanisms and robotics with a focus on the challenge of solving the polynomial equations that arise in their study. It is a draft of my February 2011 editorial for the ASME Journal of Mechanisms and Robotics.
***Update*** This version has a correction to references [29] and [30].